Exercise "product": self made colorful Prompt string display tool (for loop and if condition judgment)

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Exercise assistant “ product ” Colorful Prompt string display ——(for loop 、if conditional )

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Objective   record

• 1、 Code running effect
• 2、" Colorful Prompt string display tool " function code
• 3、 This exercise complete source code

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   When I did the exercise , I wanted to make a loading progress bar , It didn't work out , But made this thing .

Code running effect

Code running video effects dynamic link ：http://t.csdn.cn/sV20r

   Current scene “ Random ” To the same background color , That's why “ Blanking ” The false appearance of .python 033 Color output control ( Click the blue text to jump to view the details ) Yes black 、 white 、 red 、 green 、 green 、 blue 、 purple seven colors of the spectrum , Cancel background color “ Random ”, This can be eliminated “bug”. My homemade colorful printing tool color, Click jump to view the detailed usage , this paper “ Gadgets ” That is to use color“ Add color ” Of .

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Colorful Prompt string shows the function code

def show_tip(string, num, width):

    ''' Colorful prompt character display  string: tip character string  n:  Display duration (n×0.4 second ) width:  Display width (≤50)( Calculated in English characters )'''
    
    s = string
    if len(s)>50:
        s = a[50]
    l = system('clear') # Linux Clear the screen .
    print('\n'*3) #  Print three blank lines .

    for i in range(num):
        flag = choice(range(7)) # flag Random assignment 0、1、2、3、4、5.
        if flag == 0: #  Red .
            print(color(s,'f_red').center(width, '~'), end='\r')
        elif flag == 1: #  green .
            print(color(s,'f_green').center(width, '~'), end='\r')
        elif flag == 2: #  Blue .
            print(color(s,'f_blue').center(width, '~'), end='\r')
        elif flag == 3: #  yellow .
            print(color(s,'f_yellow').center(width, '~'), end='\r')
        elif flag == 4: #  violet .
            print(color(s,'f_purple').center(width, '~'), end='\r')
        elif flag == 5: #  gray .
            print(color(s,'f_gray').center(width, '~'), end='\r')
        elif flag == 6: #  gray .
            print(color(s,'f_black').center(width, '~'), end='\r')

        sleep(0.4) #  Pause num second .
    print() #  Print blank lines .
    

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This exercise complete source code

#!/sur/bin/nve python
# coding: utf-8

''' filename = 'color_tip.py' author = ' The dream spirit _cq' time = '2022-06-27' '''
from time import sleep #  load time Module pause method .
from os import system #  load Linux Command container , Easy code execution Linux command .
from random import choice #  Loading random number module random selection method .
from python_color import color #  Load the self-made color control printing tool module .


def show_tip(string, num, width):

    ''' Colorful prompt character display  string: tip character string  n:  Display duration (n×0.4 second ) width:  Display width (≤50)( Calculated in English characters )'''
    
    s = string
    if len(s)>50:
        s = a[50]
    l = system('clear') # Linux Clear the screen .
    print('\n'*3) #  Print three blank lines .

    for i in range(num):
        flag = choice(range(7)) # flag Random assignment 0、1、2、3、4、5.
        if flag == 0: #  Red .
            print(color(s,'f_red').center(width, '~'), end='\r')
        elif flag == 1: #  green .
            print(color(s,'f_green').center(width, '~'), end='\r')
        elif flag == 2: #  Blue .
            print(color(s,'f_blue').center(width, '~'), end='\r')
        elif flag == 3: #  yellow .
            print(color(s,'f_yellow').center(width, '~'), end='\r')
        elif flag == 4: #  violet .
            print(color(s,'f_purple').center(width, '~'), end='\r')
        elif flag == 5: #  gray .
            print(color(s,'f_gray').center(width, '~'), end='\r')
        elif flag == 6: #  gray .
            print(color(s,'f_black').center(width, '~'), end='\r')

        sleep(0.4) #  Pause num second .
    print() #  Print blank lines .


if __name__ == '__main__':
    num = 50 # 0.4×n second “ Seven colors ” Prompt character .
    s = '  Colorful Prompt string display  ' #  Set Prompt string 
    width = 50 #  Prompt string display width setting .
    show_tip(s, num, 50) #  Call the function to display information .

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